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Blue Screening
- Thread starter jigmic
- Start date
Slapdragon
Well-known member
Re: Blue Screening
[quote author=jigmic link=board=Events;num=1089394761;start=0#0 date=07/09/04 at 10:39:21]What is the best way to blue screen? Also, which is the best editing program to use blue screening?[/quote]
FCP 4.5, After Effects, and Combustion allow artifact free compositing of DV, most other NLEs do not without a plug in (Ultimatte). The reason why DV is not a good compositing format is the smaller color space, and the DCT compression, however these three applications actually have methods of handling the color space of DV and the compression artifacts for a clean clip.
Still, people who really want good composites follow a bunch of tricks to get it, including bumping to uncompressed HD and bluring the artifacts before making the composite, shooting in DV50 footage intended for composite use, and other tricks of the trade.
[quote author=jigmic link=board=Events;num=1089394761;start=0#0 date=07/09/04 at 10:39:21]What is the best way to blue screen? Also, which is the best editing program to use blue screening?[/quote]
FCP 4.5, After Effects, and Combustion allow artifact free compositing of DV, most other NLEs do not without a plug in (Ultimatte). The reason why DV is not a good compositing format is the smaller color space, and the DCT compression, however these three applications actually have methods of handling the color space of DV and the compression artifacts for a clean clip.
Still, people who really want good composites follow a bunch of tricks to get it, including bumping to uncompressed HD and bluring the artifacts before making the composite, shooting in DV50 footage intended for composite use, and other tricks of the trade.
Slapdragon
Well-known member
Re: Blue Screening
[quote author=araujofh link=board=Events;num=1089394761;start=0#3 date=07/09/04 at 14:15:54]Hey slapdragon,
When did FCP4.5 come out? I have never heard of it. Are you talking about FCP-HD?
And what is the difference between DV25 and DV50?
Thanks in advance
Fidel.[/quote]
FCP 4.5 is FCP - HD. If you check the version number, FCP-HD was just a marketing name. Fact was, FCP handled HD just fine before back to version 1 in fact, and FCP-HD was merely an incremental improvement.
Where FCP - HD really rocked the world was the addition of HD over IEEE1394 and complete compatibility with the DV100 standard.
DV25 was the original 4:1:1 25 megabit / second format created by Matsushita Electric Industrial Corp (Panasonic), Sony, Victor Corporation of Japan (JVC), Philips Electronics, N.V., Sanyo Electric, Hitachi, Sharp, Thompson Multimedia (RCA), Mitsubishi Electric Corporation, and Toshiba in 1997 - 1998. This is what is recorded by all "DV" camcorders, although 24p, PAL, NTSC, and other versions exist of the codec. The DV25 codec samples the color difference channels at half the rate of the luminance channel, and is thus capable of lower color fidelity than other formats. In addition, the DCT compression, in order to fit the codec into the 25mbit window, is rather blocky, causing a real world loss in observable resolution, but also causing jaggies even in progressive versions of the format. The jaggies and the lower color detail result in lower quality clipping paths when compositing using DV25.
DV50, invented by Panasonic and used by JVC in digital-s, marries two DV25 streams into a single 4:2:2 lower compression whole. The extra bandwidth allows some easing of the harsh DCT compression, and the added color space makes compositing easier.
There is also now a DV100 codec, that is used in the new Panasonic HD systems, and can also be linked by the cheaper IEEE1394 connection standard.
[quote author=araujofh link=board=Events;num=1089394761;start=0#3 date=07/09/04 at 14:15:54]Hey slapdragon,
When did FCP4.5 come out? I have never heard of it. Are you talking about FCP-HD?
And what is the difference between DV25 and DV50?
Thanks in advance
Fidel.[/quote]
FCP 4.5 is FCP - HD. If you check the version number, FCP-HD was just a marketing name. Fact was, FCP handled HD just fine before back to version 1 in fact, and FCP-HD was merely an incremental improvement.
Where FCP - HD really rocked the world was the addition of HD over IEEE1394 and complete compatibility with the DV100 standard.
DV25 was the original 4:1:1 25 megabit / second format created by Matsushita Electric Industrial Corp (Panasonic), Sony, Victor Corporation of Japan (JVC), Philips Electronics, N.V., Sanyo Electric, Hitachi, Sharp, Thompson Multimedia (RCA), Mitsubishi Electric Corporation, and Toshiba in 1997 - 1998. This is what is recorded by all "DV" camcorders, although 24p, PAL, NTSC, and other versions exist of the codec. The DV25 codec samples the color difference channels at half the rate of the luminance channel, and is thus capable of lower color fidelity than other formats. In addition, the DCT compression, in order to fit the codec into the 25mbit window, is rather blocky, causing a real world loss in observable resolution, but also causing jaggies even in progressive versions of the format. The jaggies and the lower color detail result in lower quality clipping paths when compositing using DV25.
DV50, invented by Panasonic and used by JVC in digital-s, marries two DV25 streams into a single 4:2:2 lower compression whole. The extra bandwidth allows some easing of the harsh DCT compression, and the added color space makes compositing easier.
There is also now a DV100 codec, that is used in the new Panasonic HD systems, and can also be linked by the cheaper IEEE1394 connection standard.
Slapdragon
Well-known member
Re: Blue Screening
[quote author=araujofh link=board=Events;num=1089394761;start=0#5 date=07/09/04 at 14:45:54]Thanks a lot!
It is much clearer now.
Tu e fera mesmo ein? Caramba!!!
All the best
Fidel.[/quote]
Sim muito caramba!
[quote author=araujofh link=board=Events;num=1089394761;start=0#5 date=07/09/04 at 14:45:54]Thanks a lot!
It is much clearer now.
Tu e fera mesmo ein? Caramba!!!
All the best
Fidel.[/quote]
Sim muito caramba!